Help with this math equation please help

Help With This Math Equation Please Help

Answers

Answer 1

Answer:

i. Girls : 10 merits

ii. Boys : 11.4 merits

iii. The boys did better on average because the number of their mean merits received is higher than that girls.

Step-by-step explanation:

Mean = [tex]\frac{sum of merits}{number of merits}[/tex]

Sum of merits received by boys = 5 + 10 + 19 + 22 + 13 + 10 + 1

                                    = 80

number of merits = 7

Mean number of merits received by boys = [tex]\frac{80}{7}[/tex]

                                           = 11.4286

The mean number of merits received by boys is 11.4

Sum of merits received by girls = 6 + 11 + 15 + 16 + 12 + 10 + 0

                                                 = 70

number of merits = 7

Mean number of merits received by girls = [tex]\frac{70}{7}[/tex]

                                             = 10.0

The mean number of merits received by girls is 10.0

Therefore,

i. Girls : 10 merits

ii. Boys : 11.4 merits

iii. The boys did better on average because their mean merits is higher than that girls.


Related Questions

x - 4x - 12 = (x __ 2)(x ____ 6)
where do the plus and equal sign go

Answers

Step-by-step explanation:

x - 4x - 12 = (x __ 2)(x ____ 6)

when they add negative

when they're multiplied negative

(x+2)(x-6)

because when u add them -6+2=-4

when u multiply them -6*2= -12

Select Proportional or Not Proportional to correctly classify each pair of ratios.

Proportional or Not Proportional

12 over 30 and 18 over 45

Answers

Step-by-step explanation:

Given that,

12 over 30 and 18 over 45

We need to tell whether the ratios are Proportional or Not Proportional.

[tex]\dfrac{12}{30}=\dfrac{2}{5}[/tex]

And

[tex]\dfrac{18}{45}=\dfrac{2}{5}[/tex]

The ratio for both fraction is same i.e. 2/5 Hence, each ratios are Proportional.

Which set of numbers is arranged in increasing order? A. , , , B. , , , C. , , , D. , , ,

Answers

Answer: Option B.

Step-by-step explanation:

By an online search, i found that the options are:

A: (123873, 24765, 25000, 5678)

B: (16287, 16728, 16827, 16872)

C: (98782, 98728, 98287, 98278)

D: (78082, 78802, 78208, 78028)​

The numbers will be arranged in increasing order if the difference between all the pairs of consecutive numbers in the set is positive (where the order of the numbers if from left to right):

For example, for the set A the differences are;

1) 24765 - 123873 = -99108

The difference is negative, then the second number is smaller than the first one, then the numbers are not arranged in increasing order.

Now let's see with set B:

1) 16728 - 16287 = 441

2) 16827 - 16728 = 99

3) 16872 - 16827 = 45

All the differences are positive, then the numbers on this set are arranged in increasing order.

We could easily see that in sets C and D the numbers are not arranged in increasing order, in set C the second number is smaller than the first one.

and in set D the third number is smaller than the second number.

Answer: sorry if it is not what you wanted I wasn't sure on what to submit

HELP QUICK ...........

Answers

Answer:

By translating the graph of f(x) two units to the left

Answer:

down 2 units I think

Step-by-step explanation:

evaluate the expression (3 • 2) to the second power

Answers

Answer:

6

Step-by-step explanation:

Answer:

36

Step-by-step explanation:

3x2 =6

Then 6 to the 2and power and its 36

Barbra buys-
3 boxes of eggs
1 jar of mayo costing £1.80
2 loaves of bread
she pays with a £10 note and gets £1.60 change. Barbra works out that the cost of 1 loaf of bread is £1.40 .
Is she correct? You MUST show your working out

Answers

Answer:

No, Barbra is wrong as cost of 1 loaf of bread is £1.50 not $1.40.

Step-by-step explanation:

Note: This question is not complete. The complete question is therefore provided before answering the question as follows:

Barbara buys 3 boxes of eggs costing £1.20 each

1 jar of mayo costing £1.80

2 loaves of bread

she pays £10 note and gets £1.60 change

Barbara works out the cost of 1 loaf of bread as £1.40.

Is she correct? You MUST show your working out.

The explanation of the answer is now given as follows:

Total cost of 3 boxes of eggs = Number of boxes of eggs bought * Price per box of egg = 3 * £1.2 = £3.60

Cost of 1 jar of mayo = £1.80

Total amount spent = Note paid - Change collected = £10 - £1.60 = £8.40

Total cost of 2 loaves of bread = Total amount spent - Total cost of 3 boxes of eggs - Cost of 1 jar of mayo = £8.40 - £3.60 - £1.80 = £3.00

Cost of 1 loaf of bread = Total cost of 2 loaves of bread / 2 = £3.00 / 2 = £1.50

Therefore, Barbra is wrong as cost of 1 loaf of bread is £1.50 not $1.40.

giving brainliest!!!!!!

Answers

Answer:

B,C

Step-by-step explanation:

HAVE A GOOD DAY

4. Write the function y = (x + 2)(x - 1) in standard form.

Answers

1) Distribute
Y=x^2-1x+2x-2
2) Combine like terms
Y=x^2(-1x+2x)-2
3) Slove
Y=x^2+1x-2

Answer

Y=x^2 + 1x -2

helllllllllllllllllllllllllllp please

Answers

Answer:

0° and 18°

Step-by-step explanation:

3tan²β - tanβ = 0

tanβ(3tanβ - 1) = 0

tan β = 0 ⇒ [tex]\beta _{1}[/tex] = 0°

3tan β - 1 = 0 ⇒ tan β = [tex]\frac{1}{3}[/tex] ⇒ [tex]\beta _{2}[/tex] = arctan ( [tex]\frac{1}{3}[/tex] ) ≈ 18°

Answer:

[tex]3 \tan {}^{2} \theta - \tan\theta= 0 \\ \tan\theta(3 \tan \theta- 1) = 0✓\\\\\tan\theta = 0 \\\boxed{\theta = 0°} ✓\\\\ 3 \tan\theta - 1 = 0 \\3 \tan \theta = 1 \\ \tan \theta = \frac{1}{3} \\ \theta = { \tan }^{ - 1} ( \frac{1}{3} ) \\\boxed{\theta = 18.4°}✓[/tex]

★ Value of the ∅ is 0° and 18.4°.

2. 1 million African American students enroll in college every year. 10% of these students decide to go to a Historically Black College or University (HBCU). Given a graduation rate of 37%, how many African American students graduate from HBCUs a year? *Umm Help*​

Answers

Answer:

77,700 students graduate on (HBCU)

Step-by-step explanation:

2,100,000*.10=210,000

210,000*.37=77,700

(I am not really sure about this )

HELP I Will mark brainliest if you explain

Answers

Answer:

(0,5)

(2,1)

(4,-3)

Step-by-step explanation:

so all you have to do is plug in the x value and if the y value comes out to be whatever is matches up with then it is a solution to the equation for example if you plug in 0 to y=-2x+5 then you get 5 and below it says that when x=0 then y=5 which is true so that would be an answer now if you plug in 2 then you get 1 and it says that when x=2 y=9 which is not correct. sorry if this doesnt make sense its so hard to explain virtually

the unknown angle?

Answers

Answer:

The second option

Step-by-step explanation:

180-45 because thats how you find missing angles on a straight angle.

7x+6= 5(x+2)
help me​

Answers

Answer:

X = -2

Step-by-step explanation:

7x+6=5(X+2)

open the bracket

7x+6=5x+2

7x-5x=2-6

2x=-4

divide both sides by 2

X = -2

[tex] \huge \pink{solution}[/tex]

Given :7x+6=5(x+2)

Now We will use the distributive property to multiply 5 by x+2.

→7x+6=5x+10

We will Subtract 5x from both sides.

→7x+6−5x=10

We will Combine 7x and −5x to get 2x.

→2x+6=10

We will Subtract 6 from both sides.

2x=10−6

We will Subtract 6 from 10 to get 4.

2x=4

We will Divide both sides by 2.

x= 4/2

At last,We Divide 4 by 2 to get 2.

x=2

Which is greater? 5% of 10,555 or 30% of 250

Answers

Answer:

5% of 10,555

Step-by-step explanation:

5% of 10,555 is 527.27.

30% of 250 is 75.

5% of 10,555 because:

.05 x 10,555= 527.75
and
.30 x 250= 75

so 527.75 > 75

8*4+4y=60 solve the problem

Answers

y=7, i hope this helps:)

The area of a rectangle is 5/18 square foot. If the length of the rectangle is 5/6 foot, what is the width of the rectangle in feet?

Answers

I think it’s 25/108 or 5/9

Just part a I’ve done b.
Photo provided.

Answers

Answer:

x=-5

Step-by-step explanation:

[tex] {2}^{x} = \frac{1}{32} [/tex]

[tex] {2}^{x} = \frac{1}{ {2}^{5} } [/tex]

[tex] {2}^{x} = {2}^{ - 5} [/tex]

[tex]x = - 5[/tex]

Malachi hikes for 2.5 miles and stops for lunch. Then he hikes for 1.5 more miles. How many miles did he hike altogether?​

Answers

Add the miles figured to get the amount of miles he hiked altogether.

2.5 + 1.5 = 4 miles

Therefore he hiked 4 miles altogether

The number of miles did he hike altogether is 4 miles.

Given that,

Malachi hikes for 2.5 miles.And, he hikes for 1.5 more miles.

Based on the above information, the calculation is as follows:

= 2.5 miles + 1.5 miles

= 4 miles

Therefore we can conclude that the number of miles did he hike altogether is 4 miles.

Learn more: brainly.com/question/3530056

Find the value of x that makes the quadrilateral a parallelogram. Please

Answers

Answer:

x has no value

Step-by-step explanation:

me+you=20

Use the ruler to find 1 / 1/10 and 4 1/10

Answers

Answer:

the first answer is 10 and the second is 40

Step-by-step explanation:

there actually asking how many meters would make 1 centimeter

On the ruler 1 whole centimeter is 10 meter. (The longer line behind the number is the 10th meter )

Dividing fractions

1 ÷ 1/10

Steps

Change the whole number which is 1 into a fraction.

1/1 ÷1/10

Flip the second fraction in the equation.

1/1 ÷ 10/1

Then change the division sign to a multiplication sign. So were multiply instead.

1/1 × 10/1

Multiply the fractions and your answer should be 10/1 .

This fraction is also changed to a whole number.

10/1 = 10

PLEASE HELP QUICK!!!!!!!! WILL GIVE BRAINIEST!!!!!!!!

Answers

Answer:

$4800

Step-by-step explanation:

$200 x 3% x 8

you multiply the 8 and 3 together then multiply what you got for 3 x 8 multiply that by 200

Answer:

$253.35

Step-by-step explanation:

A=200(1+0.03)^8

A=253.35

a fruit stand sells 7 apples at $2.45. at this rate, how much will 9 apples cost?

Answers

Answer:

3.15 for 9 apples

Step-by-step explanation:

2.45 divided by 7 is 0.35. 2.45+0.35=2.80 and thats 8. 9 is 3.15 because 2.80+0.35= 3.15. thats nine apples

read each problem carefully and solve as required then answer the questions that follow.​

Answers

Answer:

Step-by-step explanation:

1) Number of jeans = x

Number of blouses = y

Total items = 6

x +  y = 6 -------------------(I)

       y = 6 - x

Cost of 'x' jeans =  300 *x = 300x

Cost of y blouses = 100 * y = 100y

Total amount  = Php. 1000

300x + 100y = 1000 ------------(II)

2) Substitute y = 6 - x in equation (II)

         300x + 100(6-x) = 1000

300x + 6*100 - x *100 = 1000

 300x + 600 - 100x   = 1000

                200x + 600=1000

                          200x = 1000 - 600

                          200x = 400

                               x = 400/200

x = 2

Plugin x = 2 in equation (I)

2 + y = 6

     y = 6 - 2

     y = 4

Number of jeans = 2

Number of blouses = 4

3) This equations have only one solution. So, they are consistent and independent

A. 35
B. 130
C. 70
D. 65

Answers

Answer:

the answer is A

Step-by-step explanation:

Please help! Shouldn’t take long hopefully

Answers

Answer:

i think its triangle

Step-by-step explanation:

im not  completly sure but i think the triagnle is the one cross secting the cube

please help , giving brainliest .. and a thanks !!

Answers

Answer:

B, D, E

Step-by-step explanation:

yes

please help me..will give all the good stuff

Answers

1. 14 loaves are needed for 63 customers

2.  90 loaves

3. 4.5 loaf

Step by Step:

9/2= 4.5

4.5x4= 18

27/4.5=6

14x4.5=63

I multiplied and divided everything by 4.5 so one loaf of bread is 4.5.

(Correct me if I'm wrong)

I hope this helped! :)

What is an
equation of the line that passes through the points (-4, 2) and
(-8, -3)?

Answers

Answer:

y = 5/4 (x) + 7

Explanation:

Slope of a line (m): (y₂ - y₁) ÷ (x₂ - x₁)

       Slope: (2 - -3) ÷ (-4 - -8) = 5 ÷ 4 = 5/4

Point slope form: y - y₁ = m (x - x₁)

       Equation: y - 2 = 5/4 (x - -4)

                        distribute the 5/4

                        y - 2 = 5/4 (x) + 5

                        add 2 to both sides

                        y = 5/4 (x) + 7

I hope this helps!

Question 6
1 pts
If m LEOF 32 and m LFOG - 24, then what is the measure of LEOG? The diagram is
not to scale.
&
مس

Answers

Answer:

120 is the measure of leog

Step-by-step explanation:

Help with this please ​

Answers

Answer:

Hey you were the one I helped before right?

Well I guess I can't stop u from giving doubts. Anyway, I'll give I the answer for this one as well.

Hope this helped (again lol), U can ask for help anytime.

Don't forget to give thanks.

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